Pair of headphones



FIG. 1 is a perspective view of the pair of headphones showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines are for the purposes of illustration portions of the headphones and form no part of the claimed design. 

CLAIM The ornamental design for pair of headphones, as shown and described. 